baber/WOPTO huggingface dataset:
Patent DE-3843893-A1 (DE)
Title: Hydraulic servopower steering system for motor vehicles
Inventor: KAHRS MANFRED DR
IPC: B62D5/22
Filed: 1988-12-24
Abstract: A hydraulic servopower steering system for motor vehicles is proposed, the hydraulic support only being provided above a predetermined steering force, with a working cylinder (6) which is coupled to a mechanical steering system, a pump (19, 36) and a control valve (12). In order to obtain a safe mode of operation and a simple design of the servopower steering system, it is proposed that a displacement, brought about by the steering force, of a component (2) which is displaceably mounted with respect to the body of the vehicle serves to permit mechanical steering counter to a pretensioning force of the mechanical actuation of the control valve (12). <IMAGE>
Patent DE-3844274-A1 (DE)
Title: 2 Support screws for a ladder
IPC: E06C1/38
Filed: 1988-12-30
Abstract: The ladders which are used nowadays in the case of fruit growing and have screwed-on, extensible supports can only be used at the edge of scattering fruit trees; the supports can only be unscrewed when the ladder is turned over. In the case of the novel type, the supports are intended to be fitted only once the ladder has been set up and to be usable at barely accessible locations. A nut-like internal thread (1) is integrated in the SS. Subsequently, the guide part (2) and the bell-shaped part (3) are fitted. The SS is fitted at the top on the fastening screw (4) with a clearance of approximately 3 mm. The fastening screw is fastened on the end side of the ladder, on the frame (5). The SS may also be fitted on a ball joint. In the case of fruit growing, the supports, after the ladder has been set up, are guided at the rear, through the branches, from the ground, obliquely into approximately the correct supporting inclination and are screwed into the SS by approximately 6 revolutions. If branch supports are used, these are screwed into the SS, from within the tree, and fastened on branches. <IMAGE>
Patent DE-3903894-A1 (DE)
Title: Threaded spindle with clamp handle for clamping tools
Inventor: KLIMACH HORST
IPC: B25B5/16
Filed: 1989-02-10
Abstract: Threaded spindle equipped with a clamp handle for clamping tools, in which threaded spindle there is provided, for better handling, a clamp-handle part designed as a shaped part, in which a bar is held in the region of its ends and which has on its side facing the spindle thread an elongated passage opening for the threaded spindle and on the side of the bar located opposite this passage opening a clearance for displacement of the spindle end. Such a clamp-handle part can readily be fashioned so that it sits well in one's hand.
Patent DE-3904206-A1 (DE)
Inventor: SCHAAF MICHAEL
IPC: C21C1/08
Filed: 1989-02-13
Abstract: The invention relates to a process for the operation of a cokeless gas-fired cupola furnace for the smelting and superheating of ferrous metals and their alloys, particularly cast iron, in metallurgical works. According to the invention 0.5 to 5kg of silicon in the form of ferro-silicon with a grain size between 10 and 20 mm per ton of charging material are added to the make-up components. As it is less lumpy, the ferro-silicon, in the make-up process, passes through the free spaces in the charging column into the actual grating zone, melts rapidly and forms a slag of low viscosity which flows off unimpeded into the hearth. The advantage of the process for the operation of a cokeless gas-fired cupola furnace resides in the optimum stability of the operation of the furnace in the practical smelting process.
Patent DE-3906675-A1 (DE)
Title: Heat switch
Inventor: SPANYOL GRAF VON
IPC: H02H3/00
Filed: 1989-03-02
Abstract: The heat switch is a temperature regulator for maintaining the predetermined temperature in rooms (spaces), or air-conditioning systems or heaters. It senses the heat changes directly from the network components. The temperature monitoring is provided at the predetermined heating/heat values - using the variable resistor (rheostat) - by the relay.
Patent DE-3911990-A1 (DE)
Title: Printing forme for coupon - is for national lottery and has printing blocks arranged in row in panels on mounting plate
Inventor: VEH KARL
IPC: B41F13/02
Filed: 1989-04-12
Abstract: The rotary offset printing machine prints on both sides of a continuous strip of paper which passes between the two blanket cylinders (2). In the event of a tear in the paper (4) there is a tendency for the paper to cling to the blanket cylinder (2) due to the adhesive property of the ink. The paper (4) is removed from the blanket cylinder (2) by a roller (6) mounted on the end of a swinging arm (7).  This roller (6) has an adhesive surface and is rotated in the same direction as the blanket cylinder (2) to grip the paper (4) and then  swung away from the cylinder (2). USE - Rotary printing machines.
Patent DE-3914579-A1 (DE)
Title: Ultra-thin polyacrylamide and/or agarose electrophoretic gel - on support of consolidated and calendered binder-free polyester mat
Inventor: KNABE GUENTER
IPC: G01N27/447
Filed: 1989-05-03
Abstract: In the prodn. of supported electrophoretic gels based on polyacrylamide and/or agarose, for electrophoretic sepn. processes or transfer techniques, by applying a sepg. medium to a nonwoven fibre mat, the novelty is that ultrathin gels are produced on binder-free polyester mats, which are consolidated by hydrodynamic spinning and calendered. Pref. the polyester fibres have a dia. of 10-17 microns.  The gel coat is 0.1-0.75. USE/ADVANTAGE - The process is simple and economical and gives supported gels with properties suited to the blotting process.  They are also useful for isoelectric focussing (IEF) and Na dodecyl sulphate (SDS) electrophoresis.
Patent DE-3915662-A1 (DE)
Title: Massage appts. with vibrating plate - supports numbers of short vertically mounted rods with rounded upper ends
Inventor: AUGUSTIN HANS-ULRICH
IPC: A61H23/00
Filed: 1989-05-15
Abstract: The massage appts aconsists of a number of short rods or bars (1) with rounded upper ends mounted vertically on a common support plate (2). This support plate is reinforced with ribs (3) to increase the rigidity. The plate (2) is mounted on the housing of the drive unit (4). The drive transmits a vibration to rods or bars (1) which may be a swinging, torsional or pendulum type of vibration.  The appts may consist of two or more plates (2) of which at least one is set in vibration. USE - Massage appts with series of short rods with rounded ends.
Patent DE-3918564-A1 (DE)
Title: Air heater unit - heats air extracted from ventilator and mixes it with cooler room air
Inventor: HILLE FRITZ DR ING
IPC: F28D1/02
Filed: 1989-06-07
Abstract: An air heater heats air drawn from a ventilator between parallel slats which revolve in an outlet grill, and which are individually or collectively adjustable. The outlet is narrowed by means of crossed flat narrow plates (7). USE/ADVANTAGE - Efficient mixer of cool room air with the extracted heated air.
Patent DE-3918719-A1 (DE)
Inventor: BONNET LUDWIG
IPC: A61B90/00
Filed: 1989-06-08
Abstract: The invention relates to an endoscope, in particular a resectoscope, for resecting tissue, with an endoscope shaft (1) which can be introduced into a body cavity for the purpose of supplying and withdrawing a flushing fluid and for the purpose of receiving a work assembly (4), which can be activated at the proximal end of the shaft and whose range of action can be monitored visually via an endoscope eyepiece (8) arranged at its proximal end. For the purpose of protecting the physician, a protective screen (10) can be releasably secured on one section of the length of the endoscope, more precisely on the section which is made up of the sections of the work assembly (4), protruding from the endoscope shaft at the proximal end, and the endoscope eyepiece (8). 
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Patent DE-3920385-A1 (DE)
Title: Monitoring vehicle operating parameter, e.g. distance covered - deriving values indirectly in case direct sensor is disables, e.g. in hire car
Inventor: BRUEGGEMANN ULRICH DIPL ING
IPC: G07C5/08
Filed: 1989-06-22
Abstract: At least one useful parameter of a motor vehicle is monitored by measuring the wheel rotation as a first parameter, i.e. distance covered, measuring ignition pulses or engine revolutions as a second parameter, i.e. engine speed, and/or measuring fuel tank contents as a third parameter, i.e. fuel consumption. The first parameter is also measured using the second and third parameter sensors and a second or third parameter characteristic average value. USE/ADVANTAGE - E.g. for tamper prevention in a hire car. Distance covered is measured even when specifically provided sensor is damaged.
Patent DE-3921068-A1 (DE)
Title: Electric driven hand operated lawn mower - has motor housing rotating around fixed motor shaft and is provided with spiral shaped blades
IPC: A01D69/02
Filed: 1989-06-28
Abstract: The cylindrical electric external rotor motor (1), has built-on spiral shaped blades (2), which with the rotation of the external rotor motor rub against a stationary counter blade (3), and cut the grass from the lawn surface. USE/ADVANTAGE - Electric operated hand controlled lawn mower. Conventional hand mower cylinder can be replaced by cylindrical external rotor motor.  Mowing with this type of motor fitted is easier than with hand lawnmower.
Patent DE-3925259-A1 (DE)
Inventor: SCHUFFENHAUER ERHARD DIPL ING
IPC: D06M15/41
Filed: 1989-07-29
Abstract: Pulverulent preparations comprising     A) a phenolic complexing agent,   B) a complexible copper(II) salt and   C) a dispersant are highly suitable for the photochemical stabilisation of dyed polyamide fibres.
Patent DE-3926967-A1 (DE)
Inventor: KIRCHMAYER LEONHARD
IPC: F24J2/52
Filed: 1989-08-16
Abstract: The device is used to secure and support solar units (1) which may be assembled together into a solar panel on the outside of a building or the like. The units include a basic unit (2) with a collector channel (3) placed on the plane facing the sun and connectable to a heat conveying fluid system and possibly an absorber channel (4) in a plane at right-angles to that of the collector channel. To facilitate simple and easy assembly, the device has a bearer plate (5) on the front of which the basic unit (2) may be firmly clamped and at the rear of which there is at least one securing tongue (6) hanging transversely from the plate plane. Said tongue has a drilling (7) extending parallel to the plate plane to receive a securing screw. The bearer plate (5) may be secured via securing tongue (6) to a supporting stand (8), frame or pole.
Patent DE-3932034-A1 (DE)
Title: Automatic pig-sty cleaning system - has dirt collection container displaced in conjunction with movement of pig within sty
Inventor: AUSTERMUEHLE JOERG-WILHELM
IPC: A01K1/01
Filed: 1989-09-26
Abstract: The cleaning system using an electronic, mechanical, pneumatic or hydraulic control, uses a transport carriage which carries a collection container for the dirt from each sty, the collection container adjusted vertically relative to the horizontally displaced carriage. The supply for the drive motor can be provided by a battery or a mains transformer, with the movement controlled by the presence of the pig to allow the container to track the pig's movement, with an IR light barrier used to control its return to the rest position. ADVANTAGE - Efficient soil collection for reduced risk of infection etc.
Patent DE-4006877-A1 (DE)
Inventor: SHIMA MASAHIRO
IPC: D04B1/24
Filed: 1990-03-05
Abstract: When knitting an article such as a sweater 1 in a tubular seamless manner on a flat knitting machine fashion lines 7 are formed spaced from the edges of the fabric simultaneously with shaping of the fabric. By a process including transfer of loops between the beds and relative racking of the beds loops of each bed are transferred to adjacent needles of the same bed and as a result superimposed loops 71-74 are formed on certain needles which form the respective fashion lines 7 of the front and rear fabrics. A raglan-style fashion line may be formed on a four-bed machine with three loops being superimposed on each relevant needle. <IMAGE>
Patent DE-4011011-A1 (DE)
Title: Steplessly variable chain drive - has two large wheels to carry small wheels to carry small wheels which can be moved radially
Inventor: MEHNERT GUENTER
IPC: F16H61/662
Filed: 1990-04-02
Abstract: The chain drive with a steplessly variable speed ratio has a driving shaft and a driven shaft.  Each shaft carries a wheel and each wheel has small chain wheels (13) mounted equally spaced in a ring near the periphery of the large wheel.  A chain (14) which passes around these small chain wheels (13) transmits the drive from one wheel to the other. Each small wheel (13) can be moved radially inwards or outwards by a hydraulic actuator supplied with hydraulic fluid from a gear-tooth pump which is driven by the rotation of the large wheel.  This radial movement of the small wheels allows the effective diameter of the large wheel and so alters the speed ratio. USE - Variable speed chain drive.
Patent DE-4015019-A1 (DE)
Title: Audio circuit with electronically controlled transmission - has feedback amplifier followed by voltage divider with controlled tap-off switching
Inventor: KILIAN ERNST-AUGUST
IPC: H03G5/04
Filed: 1990-05-10
Abstract: The circuit has the input signal supplied to an amplifier with controlled feedback its output fed to a voltage divider with a frequency-dependent characteristic. The voltage divider has a number of tap-off points (9. 13; 31...35) coupled to the inverting input of the amplifier via a first switch (8) and to the circuit output via a second switch (30). The 2 switches (8, 30) are electronically controlled in dependence on one another and pref. comprise semiconductor switches controlled via digital data words.
Patent DE-4016992-A1 (DE)
Title: Printing screen for electric elements on irregular boards - is shaped by inelastic imprint from rubber overlay for fitting to areas between crossing structures
Inventor: ROETHLINGSHOEFER WALTER DIPL I
IPC: B41F15/08
Filed: 1990-05-26
Abstract: Conductive tracks (2, 3) on a ceramic substrate (1) are overlaid with glass insulating layers (4, 5) and between further conductive tracks (6, 7) a circuit component is to be printed through an uncovered opening (11) in the screen (13). The screen contains an inelastic imprint (14) in the rubber (12) shaped to match the profile of the crossings (9, 10) so that the screen (13) can lie flat against the board (1). A perforated metallic foil is used pref. instead of the usual textile screen for the imprint (14). ADVANTAGE - Esp. resistances with uniform and reproducible thickness can be printed irrespective of unevenness of the circuit boards.
Patent DE-4017132-A1 (DE)
Title: Data processing unit - has series of coupled processing units for high-speed operation
Inventor: BARTELS OLIVER
IPC: G06F15/80
Filed: 1990-05-28
Abstract: The data processing system has a numbers of units (1,2,3 N) that are coupled in series. Each of the units has a processor (10) and a register (20). On both inputs (12,14) of each processor are multiplexers (30,40). The multiplexers have two inputs (32,34, and 42,44). The units are via the multiplexers and a pair of  Coupled busses (BUS1, BUS2).  to the units are a common register (50) and a second register (60) coupled to a control unit (70). ADVANTAGE - High speed processing. High capacity.
Patent DE-4018748-A1 (DE)
Inventor: BIENIEK KURT DR
IPC: H02M5/40
Filed: 1990-06-12
Abstract: A frequency converter with a d.c. voltage intermediate circuit consists of a power circuit, a control circuit which controls the elements of the power circuit and receives signals from the power circuit, and one or more user interfaces through which the control circuit receives commands and data and sends messages and data. The aim is to reduce the design voltage for the insulation to a minimum. To this end, a reference potential of the control circuit is applied to the midpoint of the intermediate circuit voltage, the control circuit is designed with a microcomputer with a user interface in the form of digital, insulated data connections, and the user interface is insulated with a design voltage at least from the intermediate circuit voltage.
Patent DE-4020252-A1 (DE)
Title: Ascertaining qualities of mixtures by load measurements - deriving loss index at idling and load RPM of concrete mixer motor
Inventor: DOSE HARTMUT
IPC: G01N11/14
Filed: 1990-06-26
Abstract: At the concrete-mixing workplace an r.p.m. meter (4) in the measuring appts. (9) determines the loss index at idling and load speeds of the electric motor (2). To ascertain the load, the phase shift, also at idling and loading of current and voltage is measured in parallel with the r.p.m. measurement of the engine via a converter (3). Evaluation follows in a process computer (10) and used for measuring and regulating. - The current supply is taken from a generator (5) and supplied to the measuring and regulating electronics (9, 10) via charging appts. (6), an accumulator (7) and a stabiliser (8).
Patent DE-4022569-A1 (DE)
Title: Grafted, crosslinked propylene¨ copolymers
Inventor: MUEHLENBERND THOMAS DR
IPC: C08F8/42
Filed: 1990-07-16
Abstract: Copolymers (I) of propylene (P) and up to 35 wt.% other 2-10C 1-alkenes (II), grafted with alpha,beta-unsatd. carboxylic acids or derivs. (III) are claimed. (I) are obtd. by reaction of (III) with the (P) copolymer at 1-500 bar in the absence of radical initiators, by adding 0.01-1 wt.% (III) to the molten copolymer and carrying out the grafting reaction at 210-350 deg.C. Also claimed are (a) crosslinked copolymers obtd. by reaction of (I) with organic crosslinkers (IV) at 1-500 bar and 21-0350 deg. 210-350 deg.C. (b) the crosslinking process, (c) crosslinkable copolymers obtd. by mixing (IV) with (I) for less than 30 secs. at 1-500 bar and below 210 deg.C and rapidly cooling the mixt. and (d) ionomers obtd. by reacEP467178A - A3tion of (I) with salts of (in)organic acids and alkali, alkaline earth or transition metals. The copolymer specifically consists of 40-95 wt.% homo-polypropylene and 5-60 wt.% statistical copolymer of (P) and (II), or a statistical copolymer contg. up to 20 wt.% (II); process (e) is carried out at not above 200 deg.C for not above 25 secs.
Patent DE-4034094-A1 (DE)
Title: Electrical contact element with spring arm contacts - lower one being bent towards upper one stamped from single piece
Inventor: ZINN BERND
IPC: H01R13/11
Filed: 1990-10-26
Abstract: Spring arm contacts (13) extend from a base (2) to the front on a fork shape symmetrically about a plane (A) through the middle of the element (1). A contact (4) extends from the base (2) to the back and can be crumped to a conducting wire, can be plugged into a conducting plate or connected to similar contacts. An outer spring (10) with spring arms (14) is provided for the spring arm contacts (13). The contact element (1) forms a single bent member with the outer spring (10). The spring arm contacts (13) and the spring arms (14) angle outwards towards the base (2) and one tied to the base (2). ADVANTAGE - Can be made simply, quickly and unexpensively.
Patent DE-4040838-A1 (DE)
Title: Pulsating inert gas expelling volatile contaminants from terrain - and ground water prevents explosive mixt. formation
IPC: B09C1/00
Filed: 1990-12-20
Abstract: Ground water contg. volatile components is displaced from water-laden contaminated terrain and forced upwards to a cleaning stage (15) by injection of an inert gas, e.g. N2 or CO2 or inert gas mixt. From the upper terrain layers not satd.  with water, the contaminated air is sucked out to a separate purificn. stage (9,10). Gas injection is pref. pulsating, at frequency from 1-100 kHz, and injected gas may be at least partly circulated. ADVANTAGE - Inert gas is pref. to air, which over the protracted treatment could form iron hydroxide in the ground water, enriching the contaminants. Risk of explosion from hydro-halides is also reduced.
Patent DE-4100161-A1 (DE)
IPC: B28B7/16
Filed: 1991-01-05
Abstract: The proposal is for a process and device for making moulded parts (11), especially concrete shaft sections. The parts are shaped in a mould consisting of a core (15), a casing (20) and a lower sleeve (24) into which the moulding compound is poured and compressed by vibration. During production, in shaping from the moulding compound, at least one support (25 to 28) on which a foot may be placed is formed from inside in the shape of a recess (30 to 33), for which purpose the core (15) has one mould body (55 to 58) per recess (30 to 33) to be formed with a shape corresponding to that of the recess. After this shaping process the finished moulding (11) is removed from the mould before the binder has set inn the concrete.
Patent DE-4102294-A1 (DE)
Title: Annular flow cooling system for chemical gases - arrangement of gas collectors and outlet nozzles
Inventor: THUROW BERNVARD
IPC: F28D7/16
Filed: 1991-01-26
Abstract: Gas cooler arrangement of the annular flow type for piston compressor installations in which the annular path (6) has a gas collector (13) at its lowest point which is provided with one or more gas outlet openings (14). The central tube (7) is formed as a gas exhaust chamber (9) and each gas outlet opening (14) is joined to a nozzle pipe (15) which opens into the separator container. USE/ADVANTAGE - Cooler for a piston compressor used in the chemical industry which is capable of dealing with explosive or toxic gases.
Patent DE-4103842-A1 (DE)
Title: Appts. produce or switch cabinet housing - has flush pivot hinges accommodated by notches at two corners of pivoted front plate
Inventor: ZACHRAI JUERGEN
IPC: H02B1/06
Filed: 1991-02-08
Abstract: The housing has a vertically or horizontally pivoted front plate (20), with the pivot hinges concealed so that no part of the hinge projects beyond the front plate and allowing full access to the housing compartment. The front plate (20) has a square or rectangular notch (21) at two adjacent corners for the front parts (30) of the pivot hinges. A bore above the edge (22) of the notch (21) parallel to the pivot axis receives the fixing screw for the second hinge part. ADVANTAGE - Compact fitting of pivot hinges.
Patent DE-4105583-A1 (DE)
Inventor: PETZ GUENTER
IPC: A45D20/10
Filed: 1991-02-22
Abstract: An electric hair drier has a housing with air inlet and air outlet openings which houses a fan. The drier also has an electric heat register and operating elements with electrical switching elements for the fan motor and the heat register. To obtain a more efficient hair drier with a smaller housing, the drive motor (3) of the fan is arranged transversally to the direction of flow of the outlet air from the fan in an insert body (11) installed in the housing (1), the drive motor (3) has axial fan wheels (5) mounted on both ends (4) of the shaft in passages (9) behind inlet air openings (10) in the housing (1), the outlet air streams from both axial fan wheels (5) can be diverted and collected in an outlet stream by baffle walls (6) arranged in the insert body and can be conveyed together and simultaneously to the outlet opening through a heat register (13) fitted in the insert body.
Patent DE-4109447-A1 (DE)
Inventor: DEUSSER HANS DR
IPC: C09C1/28
Filed: 1991-03-22
Abstract: Surface-modified silica prepared by a pyrogenic method is obtained by placing a silica, prepared by a pyrogenic method, in a known mixing apparatus, spraying it with a chemical compound from the group  CHF2-CF2-O-(CH2)3-Si(OCH3)3  CF3-CHF-CF2-O-(CH2)3-Si(OCH3)3  C4F9-CH2-CH2-Si(OCH3)3  C6F13-CH2-CH2-Si(OCH3)3 with thorough mixing, carrying out further mixing and heating the resulting mixture over a relatively long period.